Cannot access offset 'id' on array|object.

Fetching class constant class of deprecated class TYPO3\CMS\Fluid\View\StandaloneView: : since TYPO3 v13, will be removed in v14. Use ext:core ViewFactoryInterface instead.

Call to deprecated method fillDefaultsByPackageName() of class TYPO3Fluid\Fluid\View\TemplatePaths: will be removed with Fluid v5; appropriate setters (like setTemplateRootPaths()) should be called instead

Access to undefined constant TYPO3\CMS\Core\Messaging\FlashMessage::ERROR.

Parameter $view of method T3G\AgencyPack\Blog\Controller\PostController::initializeView() has invalid type TYPO3\CMS\Extbase\Mvc\View\ViewInterface.

Return type of method T3G\AgencyPack\Blog\Domain\Factory\CommentFormFactory::getTypoScriptFrontendController() has typehint with deprecated class TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController: since TYPO3 v13, will vanish during v14 development. There are some remaining internal usages that can be adapted without further .rst files. The class should vanish together with $GLOBALS['TSFE'] in v14.

Parameter #1 $className of static method TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance() expects class-string<object>, string given.

Unable to resolve the template type T in call to method static method TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance()

Return type (TYPO3\CMS\Extbase\Persistence\QueryResultInterface) of method T3G\AgencyPack\Blog\Domain\Repository\PostRepository::findAll() should be covariant with return type (iterable<object>) of method TYPO3\CMS\Extbase\Persistence\RepositoryInterface<object>::findAll()

Parameter #1 $object of method TYPO3\CMS\Extbase\Persistence\ObjectStorage<object>::attach() expects object, TYPO3\CMS\Extbase\DomainObject\DomainObjectInterface|null given.